My dad is not in my life and he was an only child anyway, but my mom conversely has five other siblings who are all either mentally unstable, emotionally broken, or both, yet somehow we all (or realistically 80% of us) manage to make the annual family reunion every summer to celebrate my granny's birthday. She's gonna be 93 this year, but there's this looming sense of dread I feel where my mom and her siblings will stop talking to each other entirely once dear Granny kicks it, because it's become very evident to me that they all form cliques and keep secrets and hate each other like some dysfunctional noble family, or I guess more appropriately a Scottish clan...
My dude cousins are all living their own lives to varying degrees of happiness but are generally displeased with the state of the world and are fun to drink with for that reason. My girl cousins meanwhile (barring the one who married into a Pentacostalist cult and went off the grid into the Florida innawoods) are all living stereotypes of what you think liberal arts educated white women are like. I can have amicable conversations with both, but I don't think I'd really be torn up if I never saw most of them again. My extended family was atomized and spread out geographically long before the Internet became mainstream and I think social media only made it worse because now we all pretend to know what's going on in each others' lives. I don't think I ever really had a chance to form healthy relationships with these people in the first place.
Maybe it's because I come from a big family, but I find that you can't really give everyone love equally, and I think unconditional love just because someone is family is bullshit; it's why so many of my relatives are miserable.